Electrochemically Catalytic Activity of Boron-doped Diamond for I&lt;sup&gt;&amp;minus;&lt;/sup&gt;/I&lt;sup&gt;0&lt;/sup&gt; Redox Couple

Kawakita, Jin; Shinoda, Yasuo Hashimoto; Sakamoto, Yukihiro

doi:10.5796/electrochemistry.83.342

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…Diamond and carbon thin films due to their variability and superior mechanical, optical, electrical, and biocompatible properties, become widely used over the world in multi-disciplinary fields such as material engineering (composite materials), opto-electronics (electronic devises, sensors), bio-chemistry (catalysts), life science (implants, drug delivery, bio-labelling) or even microbiology (as anti-adhesive and antibacterial coatings) [1][2][3][4][5]. For each scientific or commercial field, intrinsic properties have to be often tailored to meet specific requirements on surface morphology, electrical conductivity, optical transparency, etc.…”

Section: Introductionmentioning

confidence: 99%

Technological Aspects in Fabrication of Micro- and Nano-Sized Carbon Based Features: Nanorods, Periodical Arrays and Self-Standing Membranes

Ižák

Domonkos

Babchenko

et al. 2015

Journal of Electrical Engineering

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Diamond and/or carbon thin films are in the center of interest due to their variability and extraordinary combination of intrinsic properties. However, some applications require fabrication of films with tailored properties. Especially, fabrication of periodic structures is highly attractive due to their increased surface area. In this contribution we point out the key technological aspects for fabrication of micro-and nano-sized carbon-based structures. Three representative structures are presented: diamond nanorods, self-assembled templates and self-standing diamond membranes. We found that the diameter of diamond nanorods can be controlled in a broad range from 10 to 200 nm by the masking material (Au vs Ni) and its initial thickness (from few to tens of nanometers). The assembly of polystyrene microspheres in mono-or multi-layer with square or hexagonal periodicities was controlled by the spin-coating parameters. The diamond porous membrane was selectively grown on Si substrate with an interdigital or mesh like geometry. Advantages of each structure as well as the fabrication limitations are discussed more in detail and finally their representative applications are pointed out.K e y w o r d s: diamond, carbon, nanorods, microsphere lithography, selective area deposition, SEM

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Section: Introductionmentioning

confidence: 99%

Technological Aspects in Fabrication of Micro- and Nano-Sized Carbon Based Features: Nanorods, Periodical Arrays and Self-Standing Membranes

Ižák

Domonkos

Babchenko

et al. 2015

Journal of Electrical Engineering

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“…The PBDD coating layer was prepared by the hot-filament CVD method 25) using a source gas consisting of a mixture of H 2 , CH 3 , and B(OCH 3 ) 3 , which was produced by dissolving boric acid into methanol. 26) The growth duration was about 10 h during which substrate temperature was maintained between 1020 and 1070 K. Depending on the furnace conditions, we obtained three types of PBDD samples as summarized in Table I. The boron concentration as measured by secondary ion mass spectrometry (SIMS) was 7-30´10 20 cm −1 , which is heavy enough to make the PBDD metallic.…”

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confidence: 99%

Diamond hollow cathode with axial magnetic field for high-density cold plasma source

Miyazaki

Yoshida

Kimura

2022

Appl. Phys. Express

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We present a high-density plasma source using a hollow cathode with an axial magnetic field. The hollow cathode consists of molybdenum plates coated by polycrystalline boron-doped diamond (PBDD) with a high yield of ion-induced secondary electrons. Impact ionization was promoted by gyromotion in the hollow cathode with a magnetic field. A normalized current density four orders of magnitude larger than that of a planar cathode without a magnetic field was obtained. The high-quality PBDD cathode enables lower discharge sustain voltage and higher current density without glow-to-arc transition compared with low-quality PBDD and other cathode materials.

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Relationship between Emission Spectrum and B Content in B Doped Diamond Synthesis using Mode Conversion Type Microwave Plasma CVD

Suzuki

Maruko

Takahashi

et al. 2020

Journal of the Surface Finishing Society of Japan

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As described herein, we investigate the effects of the plasma state on boron (B)-doped diamond (BDD) resistivity. Preparing BDD of various volume resistivities is difficult. Various studies have examined control of the BDD resistance value, necessitating systematic investigations of the relation between resistivity and B contents in plasma. Therefore, plasma during growth was measured using optical emission spectroscopy (OES) to clarify the relation between emission species and resistance values. For each condition, OES revealed peaks of B (249.7 nm) , BH (433.1 nm) , BO (436.3 nm) , H α , H β , CH, and C. Electrical resistivity measurements obtained using the four-point probe method with minimum volume resistivity of 0.3 Ω•cm were obtained. With increasing B-containing emission species such as B, BH, and BO intensity in OES spectra, resistivity was decreased. Results suggest that B-containing emission species in OES spectra influence the resistivity of BDD.

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Electrochemically Catalytic Activity of Boron-doped Diamond for I<sup>−</sup>/I<sup>0</sup> Redox Couple

Cited by 4 publications

References 10 publications

Technological Aspects in Fabrication of Micro- and Nano-Sized Carbon Based Features: Nanorods, Periodical Arrays and Self-Standing Membranes

Technological Aspects in Fabrication of Micro- and Nano-Sized Carbon Based Features: Nanorods, Periodical Arrays and Self-Standing Membranes

Diamond hollow cathode with axial magnetic field for high-density cold plasma source

Relationship between Emission Spectrum and B Content in B Doped Diamond Synthesis using Mode Conversion Type Microwave Plasma CVD

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